Specific Pattern 1

20 Apr 2019

import re

fn = "DC_QnA_bo_v.15.12.3_DE_duplicates.xlsx"
rgx = re.compile('\b_[A-Z]{2}\b')
print(re.findall(rgx, fn))

[]

rgx = re.compile('(?<=_)[A-Z]+(?=_)')
print(re.findall(rgx, fn))

['DE']